"But the rational and the irrational appear such in a different way to different persons, just as the good and the bad, the profitable and the unprofitable. [...] For to one man it is consistent with reason to hold a chamber pot for another, and to look to this only, that if he does not hold it, he will receive stripes, and he will not receive his food: but if he shall hold the pot, he will not suffer anything hard or disagreeable. But to another man not only does the holding of a chamber pot appear intolerable for himself, but intolerable also for him to allow another to do this office for him. If, then, you ask me whether you should hold the chamber pot or not, I shall say to you that the receiving of food is worth more than the not receiving of it, and the being scourged is a greater indignity than not being scourged; so that if you measure your interests by these things, go and hold the chamber pot. "But this," you say, "would not be worthy of me." Well, then, it is you who must introduce this consideration into the inquiry, not I; for it is you who know yourself, how much you are worth to yourself, and at what price you sell yourself; for men sell themselves at various prices." - Epictetus, Discourses, 1.2.2; (G. Long, Trans.)